使用自动连线依赖项进行测试，例如验证器中的会话

Question

我在对象的字段上定义了几个自定义注释，例如：

public class Person{
     @Accountname 
     String email;
}

@Accountname的实现类：

       @Autowired ValidationService service;    
       @Autowired ClientSession clientSession;
    @Override
    public boolean isValid(final String email, final ConstraintValidatorContext ctx) {
                    if(!service.isAccountValid(email, clientSession)){
                    return false;
                }
            }

我正在尝试为这些注释编写 junits。

    @Test
    public void validEmailTest()
    {
        person.setEmail("[e-mail]");
        Set<ConstraintViolation<Person>> violations = validatorInstance.getValidator().validateProperty(person, "email");
        Assert.assertEquals(1, violations.size());
    }

但是当我执行测试时它会抛出此错误：

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.clientSession': Scope 'session' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet/DispatcherPortlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request.
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:343)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    at org.springframework.aop.target.SimpleBeanTargetSource.getTarget(SimpleBeanTargetSource.java:34)
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.getTarget(CglibAopProxy.java:663)
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:614)
    at org.hibernate.validator.internal.engine.ConstraintTree.validateSingleConstraint(ConstraintTree.java:308)
    ... 45 more
Caused by: java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet/DispatcherPortlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request.
    at org.springframework.web.context.request.RequestContextHolder.currentRequestAttributes(RequestContextHolder.java:131)
    at org.springframework.web.context.request.SessionScope.get(SessionScope.java:90)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:329)
    ... 54 more

如果验证器类依赖于会话等服务，关于如何编写 junits 的任何想法？

Answer 1

这应该单独测试（单位）。

验证的真正逻辑在您的 ValidationService 中，因此请在那里测试它，在 AccountnameValidator 中仅测试其中的逻辑，注入您的依赖项：

@Mock ValidationService service;    
@Mock ClientSession clientSession;
@InjectMocks AccountnameValidator av = new AccountnameValidator()
//initialize mocks
//example test
when(service.isAccountValid(email, clientSession)).thenReturn(true);
boolean result = av.isValid(email, ctx);
assertTrue(result);

最后，如果需要，您可以使用反射来验证电子邮件字段上的"人员"类中注释的存在。